Delta Chat

Instant Email Messaging - the largest decentralized messenger. Chat over e-mail and head back to the future with us!

Public Key

npub16zxpwcght62n7q4j88uj6ynehdqfzk572rues3y2tshr0vehfwjq2v4ynp

NIP-05 Address

delta_at_chaos.social@mostr.pub

Profile Code

nprofile1qqsdprqhvyt4a9flq2ern7fdzfumksy3t209p7vcgj99ct3hkvm5hfqpz4mhxue69uhhyetvv9ujumt0wd68ytnsw43q4ddlg5

Publishing to

relay.mostr.pub

Author Public Key

npub16zxpwcght62n7q4j88uj6ynehdqfzk572rues3y2tshr0vehfwjq2v4ynp

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Last Notes

2024-09-18 11:21:52

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@npub1qnv…xwd3 it should be fixed by now. Can you verify?

2024-09-18 10:10:25

We are well aware of the increasing risk of infiltration of our software development, especially as we offer a very high level of privacy. Core Delta contributors know each other personally from many physical week-long gatherings even if we are typically remotely collaborating across thousands of kilometers. Are we immune to infiltration, corruption or bad-faith PRs to our code repositories? No, but we value minimalism, work in public and engage with specialists for analysis and audits.

2024-09-18 09:32:58

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@npub1qnv…xwd3 interesting -- even Mastodon seems to expand it correctly
https://assets.chaos.social/media_attachments/files/113/157/862/182/511/058/original/2db9da7578484da6.png

2024-09-18 09:00:09

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@npub1qnv…xwd3 yes we understood. and it should expand to the link mentioned in the last post. Does it not for you?

2024-09-18 08:47:00

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@npub1qnv…xwd3 thanks for reporting. The link should redirect to https://delta.chat/en/2024-03-25-crypto-analysis-securejoin -- and does in firefox. Does it not for you?

2024-09-17 13:05:32

Did you know that #deltachat does not need and does not use key servers? Most other messengers (wa/signal/matrix/threema/...) actually operate or incorporate a cryptographic key server, managing the cryptographic identities of all users. Delta Chat uses decentralized protocols for key management avoiding a central storage of identities. The SecureJoin protocol is the key (sic!) innovation and was independently analyzed by ETH Zürich researchers earlier this year .... https://delta.chat/en/2024-03-25-crypto-analysis-securejoin

2024-09-10 13:09:34

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@npub17ae…edqt maybe it's ok to not worry too much? Up to a billion users are using Telegram, storing all data, their social relations, phone numbers etc. with the Durov-owned systems in cleartext. By comparison, the average e-mail server knows a lot less and there is an upgrade path to e2e-encryption if needed.

2024-09-09 07:17:43

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@npub18pp…jsma huh? green checkmark "learn more" link points to https://delta.chat/en/help#e2eeguarantee
Could you say where you are pointed somewhere else?

2024-09-08 22:31:18

Some complain about the lack of PFS but there are good reasons for not employing it and we have a well working "guaranteed end-to-end encryption" system.
Others complain about the lack of some Telegram features but Durov's project keep data of a. biIllion users in cleartext.
When shit hits the fan, we want delta chat apps to be mass-ready, provide secure and reliable private messaging service even in authoritarian environments. Easier said than done. Lots of details to care for.

2024-08-29 19:02:35

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@npub1m9e…u3xs Yes, aliases on posteo.de work. Make sure to enter alias email into the first address field and non-alias email into IMAP and SMTP login fields in advanced settings.

2024-07-16 18:29:48

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@npub1exx…r4we one of us sent you a message to your testrun account if you still use that, maybe that's easier for figuring this out :)

2024-07-16 15:57:19

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@npub1exx…r4we whether a message is end-to-end encrypted or not can be seen by the "padlock", see https://delta.chat/en/help#whene2e -- is the other user using an OpenPGP-capable app?

2024-07-11 11:19:27

Phew! If it's true that some circles in the EU want to cancel NGI FOSS funding in favor of "AI" then that would be almost as clever as the EU strategically re-orienting Horizon research big money towards Blockchains in 2019.
Public money is supposed to be spent on where it is needed and useful for a convivial society and not where big-corporate driven hype already heaps money into, aiming for big profits and layoffs. Damn it.
more info on NGI/FOSS/AI debacle https://kolektiva.social/@hackstub/112762068812732277

2024-07-03 14:38:29

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@npub1upj…2c6m maybe you can look at / add to this issue which also has to do with nine rejecting mails https://github.com/deltachat/chatmail/issues/338

2024-07-02 08:42:44

If you want to dive deep into guaranteed end-to-end encryption and how green checkmarks protect against compromised servers ("MITM attacks"), the "Cryptographic Analysis of Delta Chat" from Applied Cryptography researchers at ETH Zuerich has been published at https://eprint.iacr.org/2024/918.pdf -- earlier this year we had blogged from our side how we addressed all findings https://delta.chat/en/2024-03-25-crypto-analysis-securejoin
#securejoin #deltachat

2024-07-01 04:46:24

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@npub1upj…2c6m does this persistently happen? Chatmail servers do strict verification of "dkim" signatures for incoming messages. If you can please file an issue on https://GitHub.com/deltachat/chatmail

2024-06-29 15:45:03

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@npub1upj…2c6m any particular error message from the nine server?

2024-06-26 20:27:50

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@npub18l9…qrnj "delendam est" is fine but the "m" was superfluous. Thanks for nitpicking :)

2024-06-23 08:22:45

Delta Chat collabs are cooking new major features by a series of discussion/coding steps with roughly this recipe mix:
- one part: discussing a feature and its step wise implementation
- three parts: how does it square with usability outcomes (eg avoiding failure modes in the dialogue trees; who really needs this? what do they say themselves?)
- one part: how it can be attacked? Focus on real security outcomes.
- two parts: how can we avoid maintenance monsters for future us?

2024-06-21 07:01:49

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@npub12mm…8jvj do you have a source link for this table ?

2024-06-18 18:52:21

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@npub1dpz…9cs5 it runs on a raspberry pi and should be fine for a hundred users or so at least, probably much more.

2024-06-18 16:46:11

some news regarding rPGP, the minimal #Rust #OpenPGP implementation that stably provides end-to-end encryption since many years:
- a new FAQ including questions about IETF specs, Post-Quantum cryptography, Autocrypt, LibrePGP, Seqouia etc. https://github.com/rpgp/rpgp/blob/master/docs/FAQ.md
- NLNET just granted #OpenPGP V6 work on rPGP: https://nlnet.nl/project/rPGP-cryptorefresh/
rPGP is an independent and stable project which provides good general #OpenPGP interoperability, see "rpgpie" in https://tests.sequoia-pgp.org/

2024-06-13 08:43:54

As you know, governmental forces within the EU, the US, the UK, Russia and others are in a hot competition on who gets to be the first to subvert end-to-end encryption. A few days ago, we got another letter from Roskomnadzor, the #russia telco authority, to help them get at user data or metadata for #deltachat users. But there is no central registry of e-mail addresses, messages or decryption keys. So we declined. Sorry, not sorry.
https://assets.chaos.social/media_attachments/files/112/608/375/418/337/988/original/e80bd0ea529dac9d.png

2024-06-09 05:59:35

The #EUGoingDark 42-point plan for after the election has it all: breaking e2e encryption, "lawful" data retention, prohibiting encrypting metadata, threatening jail to developers for non compliance ..... If we thought political currents are moving against privacy then this is a new severity worthy of the worst authoritarian states dreams ... https://www.patrick-breyer.de/en/first-insight-42-key-points-of-the-secret-eugoingdark-surveillance-plan-for-the-new-eu-commission/

2024-06-07 06:51:01

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@npub14ys…0us0 sure, also there is a second post under the top. Massive multi-device ftw! :)

2024-06-05 12:39:48

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@npub1ke7…7n5r ah, ein Problem - cmdeploy, das script mit dem chatmail deployed wird, ist davon abhängig dass auf dem server apt installiert ist. also zumindest der Server muss auf Debian oder Ubuntu laufen.

2024-06-04 21:16:13

Upsie! We forgot to mention what is also new with the rolling android 1.46 release: android also got "arbitrary" reactions now . In some real family chats this is more appreciated than all the other news :)
https://assets.chaos.social/media_attachments/files/112/560/402/047/526/796/original/ca69d938290372bc.jpg

2024-06-02 12:07:02

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@npub16q3…3ajw yes but "aeap" is not often used in practise yet ( https://delta.chat/en/2022-09-14-aeap ) and has some limitations. We have plans to take up aeap and move it to he next level but they are not immediate plans.

2024-06-02 11:47:53

It's a crazy property of #chatmail that it practically has zero state: if a Chatmail server is raided, burns to the ground etc but you still have DNS control, you just set it up somewhere and people can continue chatting. In that sense it's really like a router .... You can turn it off, wipe discs, reinstall and turn it on. Theoretically someone might take your address if they arrive first with their login but they would not get readable message content so it would be more annoying than unsafe

2024-06-02 08:48:14

Delta Chat had "use but minimize" in its DNA when engaging with specs and standards. Autocrypt and #securejoin for guaranteed e2ee, #Chatmail servers with secure chat focus, #webxdc apps with html/css focus .... are the strategic examples of engaging with real internet standards but carefully curating the subset to go for .... Almost all standards are way too complex and unfitting for real world issues ... Our approach is neccessarily pragmatic because we lack resources to be idealism driven

2024-06-01 21:09:27

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@npub1zzd…xfv6 agreed .... In the new faq push notifications section we discuss it similarly https://delta.chat/en/help#instant-delivery

2024-06-01 19:11:20

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@npub1zzd…xfv6 Not sure what you mean -- https://delta.chat/en/help#instant-delivery contains more precise descriptions regarding Google FCM push notifications.

2024-06-01 19:09:02

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@npub1ya0…fpqv we are bound to look into that soon. Do you have experience with it yourself?

2024-06-01 18:54:09

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@npub1zzd…xfv6 iOS push notifications for Chatmail servers were already there with the1.44 release. The new 1.46 release introduces push notifications for Android gplay.

2024-06-01 18:03:46

A major milestone in our 6+ years long project history: With the rolling 1.46 #deltachat app releases you can start chatting without a pre-existing e-mail address, and benefit from push notifications (instant message delivery) also on Android. We also highlight ways to get in contact with bots and humans, and how #chatmail makes e-mail cheap again https://delta.chat/en/2024-05-31-instant-onboarding

2024-05-24 15:22:53

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@npub12ac…3xqe we corrected the original top post because the toot/thread is still actively shared.

2024-05-22 20:14:30

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@npub12ac…3xqe thanks for clarification and all your work! Netzpolitik writes that encrypted communications might be excluded from chatcontrol in their reporting about it, but only in a side sentence. What is your interpretation?

2024-05-18 06:04:45

WhatsApp introduces "ask meta ai" in the local chat search bar, and Slack auto-feeds messages to train their LLM robots https://eigenmagic.net/@NewtonMark/112455578857917485 ... Delta Chat is among the shrinking number of messaging applications that does not look at your data except to end-to-end encrypt it and send it over interoperable message transport servers chosen by yourselves and your contacts. #decentralization #security #privacy ftw!

2024-05-17 13:26:53

The surprising developments in our teams happen "in between" when someone makes an "argument in code" after some inspirational chatting with others, often in cross project and cross-concern manners. Chaotic some might say, not unfittingly. Challenge is to sync it with our release scheduling and reliability discipline. There is this nice saying "you have to become disciplined to be undisciplined" which mirrors practises of how larger #ccc events are arranged in which delta chat grew up :)

2024-05-13 22:35:07

Often overlooked from our "but e-mail!" skeptics: Any sufficiently advanced P2P messenger will eventually re-invent a custom, partial form of e-mail ... because users want to communicate when their apps are offline or not foregrounded and active at the same time. See https://briarproject.org/download-briar-mailbox/ for a recent example.
Delta Chat goes the reverse route by providing a secure and interoperable e-mail based messaging experience and then adds P2P tech like https://webxdc.org on top.

2024-05-13 09:25:06

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@npub1u2x…r44u yes. It's in the advanced settings. If it doesn't work, you can find some advice here: https://delta.chat/en/help#i-cant-import-my-existing-pgp-key-into-delta-chat

2024-05-12 19:33:57

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@npub1u2x…r44u usually yes -- in advanced settings there is a way. see also https://delta.chat/en/help#can-i-reuse-my-existing-private-key

2024-05-12 09:04:38

So far, our marketing department is mostly our development coordination department ... And it shows, right ? :)
Indeed, we are marketing for early adopters, devs and collaborating experts in neighboring fields and projects to join what we beliebe is a unique collaborative effort, a fediverse of interactive messengers if you will :) Our project evolves around who shows up, who thinks and does things with us, not on some ideal conception of how things should be and then trying to hire for that.

2024-05-11 17:48:18

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@npub1klv…w84p great, thanks. Note that deltachat-core-rust is not needed for running a chatmail server. It's only used for testing the chatmail server ops. Are you aware of that?

2024-05-11 12:07:14

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@npub1klv…w84p please do so on rust core repo, thanks!

2024-05-11 10:34:53

Delta chat may be criticized for not being the most secure messenger in some sense or not the most feature rich. When it comes to interoperability, however, our efforts and collaborations are the biggest game in town, no? The two biggest sets of internet standards revolve and operate at massive scale around E-Mail and the Web. Our approach fully engages and takes up these extremely impactful sets of standards, and reliably wires them into a modern UI #deltachat #webxdc #chatmail

2024-05-10 15:19:30

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@npub1f7f…qyv8 that's a very generic question. Some of us tried jami a bit but it probably has progressed since then. Maybe someone else needs to chime in who knows jami and delta chat and has used both for a while recently.

2024-05-10 10:02:10

Did you know that Delta Chat is the only mature, cross-platform secure messaging app that does not use or need a key server?
Signal, Matrix, Proton, Whatsapp all effectively operate key servers that reveal the cryptographic identity (a very strong identifier) behind an address.
Delta Chat uses decentralized specs and protocols that reveal your cryptographic identity only to those you choose to interact with. Nothing can be publically queried.
Background link: https://delta.chat/en/help#encryption-and-security

2024-05-09 22:21:53

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@npub1yck…ujmw yes, if you setup according to https://github.com/deltachat/chatmail?tab=readme-ov-file#chatmail-services-optimized-for-delta-chat-apps then iOS push notifications work automatically.

2024-05-09 17:01:00

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@npub1xs0…g0u7 no, PGP/MIME see https://delta.chat/en/help#encryption-and-security for more details and background

2024-05-09 15:02:51

Delta Chat is an in-between project: often ignored as a messenger by e-mail companies/experts and then ignored by messenger companies/experts because of its use and interoperability with e-mail. As Heinz von Foerster once said: "If you are doing something genuinely new then don't ask the experts. If you do something that has already been done, then, by all means, ask the experts." FWIW many experts have verified Delta Chat's security mechanics https://delta.chat/en/help#security-audits :)

2024-04-13 07:35:38

"but e-mail !1!!!" Is probably still a number one objection from experts and power users who refuse to fathom that e-mail protocols are a viable option for instant messaging even if it demonstrably works, is fast and secure :) We'd be happy if someone engaged in a proper comparison with xmpp and matrix specs and impls, really the only three messenging protocols deployed and implemented at scale. (Can't compare that with Signal or WhatsApp which don't have wire specs!). https://github.com/deltachat/deltachat-core-rust/blob/main/standards.md

2024-03-14 16:30:40

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@npub13qc…kr6p we do not have any intention of apropriating our experiments and, frankly, usually do not discuss licenses very much.

2024-03-14 15:19:20

The default setup of #chatmail is for open signups (anyone can get an address) but some operators implement a private signup protocol and that's fine and easy enough to do because https://github.com/deltachat/chatmail/ is a small machine.
Chatmail addresses should be abundant and safe to use for anyone , and cheap to operate with basic skills .... A few thousand chatmail routers might already cover adresses for 10 billion people, with less resource/energy usage than a single VC funded LLM startup :)

2024-03-12 21:36:07

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@npub14ue…62vv could you file on https://github.com/deltachat/deltachat-desktop/issues with screenshot ?

2024-03-12 21:33:53

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@npub1z8p…mn5l Not unthinkable and in fact the topic of a developer discussion this morning :)

2024-03-12 20:20:40

#deltachat just got four major usability improvements as the 1.44 releases are rolling out
💗 Reactions on all platforms
💗 iOS Push notifications
💗 Multi-account desktop sidebar
💗 share invite links via other messengers. Enjoy :)
https://delta.chat/en/2024-03-12-jumbo44

2024-03-06 08:18:29

New from the machine room: our pure #Rust core library underlying all #deltachat apps now has reproducible builds for "deltachat-rpc-server", used by bots and soon also the Desktop app
https://assets.chaos.social/media_attachments/files/112/047/724/011/371/169/original/752a387275c51b74.png

2023-12-13 18:27:01

Today, we are unveiling chatmail services, making onboarding with #deltachat a breeze, with peace of mind.
#chatmail marks a major milestone, answering the practical question of "where can i get a deltachat-ready account" for myself and friends?
Read more on https://delta.chat/en/2023-12-13-chatmail
https://assets.chaos.social/media_attachments/files/111/574/337/091/189/525/original/8823c5f6599e7264.png

2023-09-18 09:31:00

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@npub1htm…5ul7 we added https://delta.chat/en/help#are-attachments-pictures-files-audio-etc-e2e-encrypted -- if you find anything else let us know :)

2023-09-14 18:00:13

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We just published the new "Encryption and Security" FAQ section:
https://delta.chat/en/help#encryption-and-security
We also added more info regarding "verfiied groups" that guarantee safe E2E-encryption even if servers are malfeasant or compromised:
https://delta.chat/en/help#verifiedchats
#deltachat #security

2023-09-13 17:50:04

We are currently revising the FAQ regarding common questions about E2E-encryption and OpenPGP Security, Metadata protection, verified groups etc. in this PR https://github.com/deltachat/deltachat-pages/pull/727/files
feedback welcome at best on the PR but here is fine as well. You also can glimpse in this PR some of the security improvements we are aiming for in the next couple months.

2023-09-12 09:06:18

it's the year two thousand and 23: happy 42nd birth day, dear Chaos Computer Club! See you all at congress end of the year?
https://assets.chaos.social/media_attachments/files/111/051/366/479/600/402/original/7032d530f33ca5da.png

2023-08-20 11:55:43

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@npub1zgy…ekqk @npub1ksn…nfd9 and sorry for all the inconveniences! :(

2023-08-20 11:52:50

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@npub1ksn…nfd9 yes, the fixed version should bring back your Delta Chat with all the accounts and messages as usual, don't reinstall or you will lose all your data and keys, the next update should be available on fdroid hopefully soon

2023-08-20 01:57:37

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Small update: a few hours later we had tagged a fixing 1.40.1 which is in the pipelines of fdroid while the brown bag release 1.40.0 is marked as invalid and should not get auto-Installed further.

2023-08-19 08:14:16

It seems that the fdroid 1.40 fdroid #deltachat built is broken. Sorry about that. We are trying to mitigate and fix. You can mark this 1.40.0 update to be ignored in the fdroid app. If you already installed the new version then try downgrading. Greetings from #cccamp23

2023-08-11 16:52:11

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@npub1das…mjf5 we can't quite translate your question but both F-droid as well as Google Play have 1.38 Android versions for several weeks. There is no need for a newer version regarding what the blog post describes.

2023-08-11 09:49:59

While certain platform billionaires chatter about "everything" or "super" app architectures, we prefer to deliver and improve them -- say "Hi" to xstore@testrun.org :)
https://delta.chat/en/2023-08-11-xstore

2023-06-20 16:00:07

We were very happy when we heart that the XMPP-based https://cheogram.com/ experimentally adopted https://webxdc.org -- so that the same web apps run on Cheogram and Delta Chat. We started communicating with Cheogram's main dev through matterbridge in a group chat about upcoming webxdc improvements ... #interoperability ftw :)
https://assets.chaos.social/media_attachments/files/110/577/325/729/223/523/original/5c7c3684c79006d3.jpg